Carbon monoxide gas is more dangerous th | Class 11 Chemistry Chapter Environmental Chemistry, Environmental Chemistry NCERT Solutions

Previous / historical NCERT chapter

This chapter belongs to a previous NCERT/CBSE curriculum and is not part of the current 2026-27 chapter list. Removed in 2022-23.

Welcome to the NCERT Solutions for Class 11 Chemistry - Chapter Environmental Chemistry. This page offers a step-by-step solution to the specific question from Exercise 1, Question 3:

Carbon monoxide gas is more dangerous than carbon dioxide gas. Why?

. With detailed answers and explanations for each chapter, students can strengthen their understanding and prepare confidently for exams. Ideal for CBSE and other board students, this resource will simplify your study experience.

Question 3:

Carbon monoxide gas is more dangerous than carbon dioxide gas. Why?

Answer:

Carbon dioxide (CO2) and carbon monoxide (CO) gases are emitted during the combustion of various fuels. Carbon monoxide is poisonous, whereas carbon-dioxide is non-toxic in nature.

Carbon monoxide is toxic because it is capable of forming a complex with haemoglobin (carboxy-haemoglobin), which is more stable than the oxygen-haemoglobin complex. The concentration range of 3-4% of carboxy-haemoglobin decreases the oxygen-carrying capacity of blood. This results in headaches, weak eyesight, nervousness, and cardiovascular disorders. A increased concentration may even lead to death.

Carbon dioxide is not poisonous. It proves harmful only at very high concentrations.

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NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:

  • Read the question carefully and focus on the core concept being asked.
  • Reference examples and data from the chapter when answering questions about Environmental Chemistry.
  • Review previous year question papers to get an idea of how such questions may be framed in exams.
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Comments

  • Palakdeep
  • Dec 13, 2019

Great answer

  • gery
  • Nov 23, 2019

:)

  • Anas
  • Nov 21, 2019

Only wants to say 🙏

  • Sunil
  • Aug 03, 2019

Brrilant ans

  • Bitu
  • Jul 17, 2019

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  • Phanshu roy
  • Jul 07, 2019

Liked it very much

  • Sana
  • Apr 13, 2019

Ans r quite easy to understand..... Thank you......

  • Md Musfique
  • Mar 02, 2019

Thanks 🙏🙇 gru

  • Anubha
  • Feb 19, 2019

Thanx Excellent answer

  • Anubha
  • Feb 19, 2019

Thanx Excellent answer

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Welcome to the NCERT Solutions for Class 11 Chemistry - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 3: Carbon monoxide gas is more dangerous than carbon dioxide gas. Why?....

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